Besetting mechanism fob begistebs



g- 5, 1941- c. s. HAZARD 2,251,792

RESETTING MECHANISM FOR REGISTERS Filed May 11, 1938 3 Sheets-Sheet 2 INVENTOR Aug. 5, 1941. c s. HAZARD 2,251,792

RESETTING MECHANISM FOR REGISTERS Filed Kay 11, 1938 3 Sheets-Sheet 3 w v (frag s flazarzf Patented Aug. 5, 1941 assa'r'rmc MECHANISM roa 'aacrs'raas Charles S. Hazard, Andover', N. .J., assignor to Neptune Meter Company, a corporation of New Jersey Application May 11, 1938, Serial No. 267,236

11 Claims.

This invention relates to registers and relates particularly to resetting mechanisms associated with and operative to reset one or more associated registers.

Many types of registers are commonly in use at the present time, such as, for example, the pointer and dial and the counting wheel types. The latter type 01 register is characterized generally by the inclusion of a plurality of drums or wheels which are successively actuated by means of transfer mechanisms for producing a visual indication of the operation oi an associated apparatus. Transfer mechanisms for interconnecting successive counting wheels usually consist of a mutilated gear connected to one of the counting wheels, a full-toothed gear connected to the next higher value wheel and a transfer pinion which acts together with the lull-toothed and mutilated gear as a Geneva transmission, whereby ten revolutions oi a lower value wheel will cause the next higher value wheel to rotate step by ste through one complete revolution.

In order to allow these devices to be reset it is usually necessary to provide a plurality of friction. clutches or other releasable connections is counting wheels in order that they "etnrned simultaneously to zero position a series of interconnected pick-up friction clutches, while satisfactory he various elements of the device "vice conditions, are sometimes e the reason that repeated resete wears out these clutches ing mechanism.

up pawls are adapted to reset the countin -eels the direction they normally turn timing a registering operation. This construction has several disadvantages. The first of these is that it is possible by manipulating the resetting mechanism to advance the counting wheels after termination of a registering operation and thus obtain a higher and inaccurate indication on the register for the reason that all of the drums are advanced through 9" to position. When such registers are used, for example, in dispensing pumps, of the cost registering type, it is possible for the operator of the pump to partially reset the registers, thereby the cor "iu wheels and obtaining adva ng to his zeiy results in inaccurate operation to zero indication by rotating the counting wheels in a direction counter to the normal direction of movement of the wheels during a registering operation. Likewise it would be highly desirable to provide a registering mechanism having a resetting means associated therewith for returning the counting wheels to zero position in not substantially more than one complete rotation of the resetting mechanism.

An object of the invention, therefore, is to provide a register which is devoid of friction clutches and which may be reset by such rotation of the indicating means in a direction counter to the normal direction of operation of the indieating means.

Another object of this invention is to provide a register which is capable 'of'being reset in about one revolution of the indicating means in a direction counter to the normal direction of operation oi the indicating means.

Another object of the invention is to provide a plurality of registers which may be reset by about one complete revolution of a resetting; means whims is common mail of the registers.

A further object of the invention is to provide a mechanism including a plurality of registers which are readily reset to zero indication by a resetting mechanism common to the registers and which releases the indicating members for independent and simultaneous rotation to zero position.

Other objects will become apparent from the disclosure of a typical form of the invention hereinafter.

Registers made in accordance with the present invention are characterized by the provision of a main shaft which is adapted to be rotated only during a resetting operation and upon which are rotatably mounted the mechanisms for producing an indication of the operation of the meter or other device with which the register is associated. The main shaft may be provided with suitable resetting elements which are held in. an inoperative position during normal operation of the register which are brought into position to engage elements associated with the indicating or counting wheels of the register and return them to zero position upon actuation of a resetting crank or other resetting mechanism.

Preferably the transfer mechanism by means of which the operation of one counting wheel is transferred to the next higher wheel is such as to render unnecessary the inclusion of friction clutches for allowing simultaneous movement of the indicating numbers of the register. For example, the transfer gears may be of the split type, whereby one portion of the gear may be shifted relatively to another portion to unclutch them and allow the mutilated and full-toothed gears to rotate independently.

The resetting mechanism may consist of a shaft which is operated only during a resetting operation and which is connected by suitable gearing to the main shaft on which the register gears and pinions are supported. The resetting shaft may have associated therewith a suitable mechanism for shifting and releasing the transfer pinions to allow independent rotation of the counting wheels of the register and may also be provided with a mechanism for bringing into operation a plurality of pick-up pawls which engage elements of the register to return the counting wheels to zero position and thereafter are rendered inoperative to effect further rotation of the counting wheels.

Accurate return of the counting wheels to zero is controlled by a single zero stop mechanism which is associated with the resetting shaft. Suitable lost motion connections may be provided to allow release of the counting wheels for return to zero and subsequent rotation of the counting wheels to zero position.

Registers of the type generally described above and which are described in detail hereinafter may be used individually or in groups and may be reset by a mechanism common to all, thereby assuring simultaneous and accurate return of all of the registers to zero position.

For a better understanding of the present invention, reference may be had to the accompanying drawings, in which:

Figure 1 is a view in horizontal section, partly broken. away, of a typical form of registering mechanism embodying the present invention;

Figure 2 is aview in section taken on line 22 of Figure 1;

Figure 3 is a view in section taken on line 3-3 of Figure 1, and partly broken away;

Figure 4 is a view in section taken on line H of Figure 3; and

Figure 5 is a view in section of the transfer mechanism of the register partly broken away.

The form of the invention disclosed in the drawings may consist of a pair of frame members l0 and Ii between which the various parts of two substantially identical registering mechanisms A and B are mounted. Inasmuch as the registers A and B are identical, only register A will be described in detail, reference being had where necessary, to theelements of register B by the same reference characters used in describing register A. The counting wheels II, it and H of the register A are mounted rotatably on a shaft 45 extending between and supported in the frame members In and Ii. The counting wheels i2, i3 and Il may be adapted to indicate units, tens and hundreds in the usual way. These counting wheels respectively are provided with the drive gears I6 I"! and I! which mesh with the gears i9, 20 and 2| respectively, which are mounted on a shaft 22 rotatably journaled in the frame members I0 and ii. The gear I 9 is fixedly mounted on the shaft 22 and the gears 20 and 2| are rotatably mounted thereon. The shaft 12 may be driven from any external source of power, such as, for example, a meter (not shown) by means of the gear 23, which is connected by a suitable friction clutch 24 to the shaft 22. The gear 23 and the clutch 24 are provided with a ratchet member 25 which cooperates with a pawl 26 (Figures 1 and 2), pivotally mounted on the frame member II to pre vent reverse rotation of the gear 23 during a resetting operation.

Rotation of the shaft 22 and gear I! is transmitted to the units wheel I! and likewise to the full-toothed gear 21, which is fixed to a collar or sleeve 28 rotatably mounted on the main supporting shaft 28. The shaft 29 is rotatably mounted in the frame members l0 and H and normally remains stationary during a registering operation while the gear 11 and sleeve 28 rotate relatively thereto. The sleeve 28 is also provided with a mutilated or two-toothed gear 30 (Figures 1 and 3), which meshes with and drives a split gear 3i, which will be described in detail hereinafter. The gear 3|, in turn, meshes with and drives'a full-toothed gear 32, which is fixed to a sleeve 33, the latter being journaled on the shaft 29. At the left-hand end of the sleeve 33 is a full-toothed gear 34, which meshes with the gear 20 and drives the drum I! onetenth of a revolution for every full revolution of the drum i2. The sleeve 33 is also provided with a mutilated or two-toothed gear 85, which meshes with a split transfer pinion 38, the latter also driving a full-toothed gear I! fixed to a sleeve 38,- which is journaled on the shaft 29. The sleeve 38 is provided with a fixed full-toothed gear 38, which drives the gear 2i and the hundreds drum ll of the register one-tenth of a revolution for every complete revolution of the tens drum ii. The operation described above is similar to the operation of registers of known type.

If desired and as illustrated particularly in Figura 3 and 4 of the drawings, the other register 13 may be provided for indicating values in different units than the register Just described, for example, the register A may be used for indicating the volume and. register B the cost of liquid dispensed in a gasoline dispensing pump.

In order that the indications or registrations of the register may be related in accordance with the prevailing price of the liquid dispensed, the register B may be driven through a variable speed drive (not shown) from the register A. This mechanism may be driven by a gear ll which is fixed to the shaft 22. Likewise, if desired, two or more sets of counting wheels may be provided for each register and one set (not shown) may be disposed on the opposite sides of the shaft 29 between the left-hand edges of the frame members I I and Ii.

The registers used in this device are identical split, as shown in Fig. 5. -The gears 2i and 88 are rotatably mounted on a shaft 4| fixed in frame members i and I l and are disposed between the arms 42, 43 and 44 ;of V-shaped yoke member 45, as shown in Figures 3 and 5. The yoke member 45 is shiftably mounted on a shaft 48, extending between and fixed to the frame members l8 and ii whereby the yoke is capable of endwise shifting movement to cause separation of the portions of the split gears 8| and 85. As illustrated, particularly in Figure 5, the gear 8| consists of a gear portion 41 having a laterally extending sleeve 48 thereon which is of sufilcient length to engage the arms 42 and 48 and prevent axial shifting movement of the gear portion 41 between the arms 42 and 48. A second gear portion 48 is provided with a bore 58 which closely receives the sleeve 48 and is axially slidable thereon. The gear portion 48 may be provided with a disc-like end 5|, which engages between the mutilated gear 30 and the full-toothed gear 21 (Figure 1), thereby preventing axial movement of the gear portion -49. Therefore, if the V-shaped yoke member 45 is shifted endwise, shown in Figure 5, compressing the spring 5|, the gear portion 48 remains stationary while the gear portion 41 moves to the left, thereby uncoupling the gear portions 41 and 48 and allowing them to rotate independently. The gear 88 is identical with the split gear 81. When the yoke 45 is shifted to the left the counting wheels I2, l8 and I4 maybe rotatedin either direction.

The mechanism for the counting wheels ,l2, l3 and H to zero position may include a resetting shaft 52, which may be driven by any suitable means, such as a hand crank or motor and by means of a clutch element 58, Figures 1 and 4. The shaft 82 is rotatably mounted in the frame members l8 and II, as best shown in Fig.

4, and is provided with a cam disc 58 having a notch 58 in its periphery, as shown in Fig. 2. The disc 54 rotates with the shaft 82 and acts to displace a bellcrank lever 58 which is rotatably mounted on the shaft 48. The bellcrank 58 is provided with a pin 81 which is received in the notch 55 when the shaft 52 is in the position corresponding to its zero position. As shown in Fig. 1 the bellcrank 58 is provided with a cam lug 88 which engages in'a complementary cam recess 88 in the end of the yoke 48 adjacent to the frame member ii. Therefore, upon rotation of. the

shaft 52 the disc 54 rocks the bellcrank 88 in a counterclockwise direction. as viewed in Fig. 2, and causes displacement of the yoke 45 in a direction to cause separation of the elements 41 and 48 of the split gears 81 and 88, thereby freeing the counting wheels l2, l8 and i4 for rotation to zero position. Rotation of the shaft 82 likewise causes rotation of a gear 88, Fig. 2, which is mounted for limited rotation relatively to the shaft 82. The gear 88 is provided with an arcuate slot 81 in whichis received a finger having a laterally directed portion 82, which is keyed to the shaft 52. The length of the slot 8| is sufficient to permit rotation of the shaft 82 .through the distance necessary to cause the'pin 'il on the bellcrank tobe moved out of the notch 88 into engagement with the periphery of the disc 84 before the gear 88 starts to rotate. The gear 88, as shown in Fig. 4, meshes with gears 88. and 84, which are fixed to the main shafts 28 of registers A and B, respectively, whereby rotation of the shaft 52 will cause the shafts 28 to rotate counterclockwise at the same speed. The gear; 88 and 84 are fixedly connected to collars 85, which are keyed to the shafts .29. The shaft 28 is likewise provided with two plates 88 and 81, which are keyed to the shaft in a manner indicated in Figures 1 and 3. The collar 85 is provided with an extension 88 at its lower end, as viewed in Fig. 1, which is substantially identical in shape with the shape of the plates 88 and 61, that is, of generally rectangular cross-section and having an arcuate outer edge 88 concentric with the shaft 28 (Figure 3). Mounted on the plates 88,

81 and 88 are pawl members 10, 1i and 12, which are urged in a clockwise direction about their pivots 13, 14 and 15, respectively, by means of coil springs 18 (Figures 1 and 3). Each of the pawls 18, 1i and 12 is provided with a pin 11, which extends through an arcuate slot 18 in the respective plate members 58, 81 and 88. The arcuate slots 18 limit the movement of the pawl inwardly and outwardly from the shaft 28 between positions in which they can engage elements for causing the counting wheels to return to zero position and positions in which they are free of engagement with the elements. As best shown in Figures 1, 3 and 4, the full-toothed gears 21, 82 and 81 have lugs 18, and 8| projecting laterally from adjacent the bases of their teeth a sufilcient distance to overlie the ends of the pawls 12, 18 and 1|, respectively. Thus, when the pawls are swung outwardly to their greatest radial distance as determined by the outer ends of the slots 18, the pawls are in a position to abut the edges of the lugs 18, 88 and 8i and, upon rotation of shaft 28, to cause the gears 21, 32 and 81 and the counting wheels i2, i2 and i4 to rotate counterclockwise towards zero position.

During operation of the register, the pawls 10, H and 12 are retained in an inwardly disposed position by means of a three-fingered control member 83, best shown in Figures 3 and 4. The three-fingered control member 83 consists of a tubular sleeve 84, journaled on the shaft 52 having three sets of laterally projecting fingers 85, 86 and 81. The fingers and 88 are disposed in such a position that they engage the pins 11 on the pawls 10, 1| and 12' of registers A and B, re-- spectively, when the shaft 28 is in the position corresponding to zero position of the counting wheels i2, i8 and i4. Likewise the fingers 85 and 88 are normally rotated in a counterclockwise direction to depress the pawls 10, 1i and 12, respectively inwardly out of the circular path followed by the lugs 18, 88 and 8i during operation of the register, whereby the gears 21, 82 and 31 can rotate without interference. The fingers 85 and 88 are retained in this position by engagementof the finger 81 with the outer-periphery of a cam member 88 on the bellcrank lever 56, the cam 88 being provided with a flattened surface 88 which upon rotation of the bellcrank 58 allows the fingers 85, 88 and 81 to rotate clockwise, thus releasing the pawls 88,. 18 and 1|, for movement outwardly into the path of the lugs 18, 88 and 8i whereby upon rotation of the shafts 28 the pawls 10, 1i and 12 will engage the lugs 18, 88, 8| and rotate the counting wheels i2, I8 and i4 towards zero position in a direction counter to their normal direction of rotation during an indicating operation.

The counting wheels 12, i8 and I4 are stopped at zero position by means of a zero stop pawl 88 which is adapted to engage a zero stop lug 8i mounted on the shaft 52. The zero stop pawl with a right angle fiange 83 having an aperture 94 therein, through which passes a rod 95, which is connected to the frame member II by means of a pivot member 95. A compression spring 91 is mounted on the rod 85 and bears against the flange 93, thereby providing a toggle connection for retaining the zero stop pawl 90 in engagement with the disc 98 on which the zero stop lug BI is mounted or the finger 99 on the member 92 in engagement with the disc 98. The zero stop pawl 80 is moved out of position to engage the zero stop lug Si by means of a pin I projecting from the bellcrank lever 55 through an arcuate slot l0! of greater length than the arcuate movement of the pin I00 in the member 92, whereby clockwise rotation of the bellcrank 56 will snap zero stop pawl 90 out of position to engage the zero stop lug 9|. Thus, when the shaft 52 is in its initial position as shownin Fig. 2, rotation of the resetting shaft 52 will causethe disc 54 to eject the pin 51 from the notch 55 and movement of the bellcrank 55 releases the zero stop pawl 90 for movement into alignment with the zero stop lug SL. The zero stop lug 9| rotates with the shaft in a clockwise direction through slightly more than a complete revolution. During rotation of the zero stop lug 9!, it will engage the finger 99 on the member 82 and snap the zero stop pawl 90 into position to engage the lug 9i when the indicating wheels l2, l3 and I4 reach zero position. When the disc 54 reaches its initial position the pin 51 is still in engagement with the periphery of the disc 54 because of the rotated position of the bellcrank lever 58. An

additional partial rotation of the disc 54 allows spring I02 to snap the pin 51 into the notch 55 and brings the zero stop lug 8| into engagement with the zero stop pawl 80. When the shaft 52 is released the spring i 02 rotates the bellcrank clockwise and in turn rotates the disc 54 counterclockwise, thereby moving the zero stop lug 8| into the position shown in Figure 2 and the finger 52 to the left-hand end of the slot 51. At the same time the pin-I00 on the bellcrank lever strikes the lower end of the slot IM and moves the zero stop pawl 90 outwardly from engagement with the disc 98 into the initial position shown in Figure 2'. The relative angular displacement of the pawl 90 and stop lug 9| corresponds to the displacement of the disc 54 that is required to eject the pin 51 from the notch 55 in the disc 54.

As shown in Fig. 2, the ratchet I03 is fixed to the gear 00 and cooperates with a pawl I04 pivotally mounted on the frame member II to prevent rotation of the gear in a counterclockwise direction and shafts 29 in a clockwise direction. The pawl I04 and ratchet l03 therefore allow thecountir'ig wheels I2, I 3 and 14 to be reset backwards, only.

Assume that the registers A and B are used in conjunction with a meter and have been operated and that they bear indications corresponding to the volume of liquid dispensed and the cost of the liquid dispensed, that is, the number of units of volume times the rate per unit. It will be understood that under these conditions the tation of the disc forces the pin 51 out of the notch 55 in the disc and rotates the bellcrank 55 in a counterclockwise direction. Rotation of the bellcrank 55 shifts the transfer pinion yoke 45 downwardly, as viewed in Fig.- 1, thus separating the pinion elements 41 and 49 and freeing the gears 21, 32' and 31 and their associated indicating wheels l2, l3 and I4 for free independent movement. Immediately following release of the transfer pinions the gear 60 is coupled to the shaft 52 by engagement of the finger 52 with the right-hand end of the slot 51, as viewed in Fig. 2, and the shafts 29 are rotated in a direction counter to the normal direction of rotation of the gears 21, 32 and 31. The zero stop pawl 90 is at the beginning of a resetting operation out of alignment with the zero stop lug SI and the zero stop lug Si is free to rotate. The threefingered member 83 is allowed to rotate clockwise by the cam 88 to allow the pawls 10, 1! and 12 to swing outwardly into position to engage the lugs 80, 8| and 19, respectively. Upon continued rotation of the reset shaft 52 and rotation of the shafts 29 the pawls will move into engagement with the lugs successively in the order of their greatest angular displacement from zero position and will cause them to move backwardly towards zero position. During rotation of the shaft 52, the zero stop lug 90 strikes the finger 98- and moves the zero stop pawl into position to engage the zero stop lug 9|. After slightly more than a revolution of the reset shaft 52 the zero stop pawl 90 and stop lug 9| engage and thepin 51 on the bellcrank 56 snaps into notch 55 on the disc 54, thus allowing the bellcrank 55 to rotate clockwise and the cam disc 54 to rotate counterclockwise. Clockwise rotation of the bellcrank 56 allows the spring 5| to urge the yoke 45 carrying the pinions 3| and 30 toward the frame member ll, engaging the elements of the pinions and causing the three-fingered member 03 to 1'0- tate in a counterclockwise direction to force the pawls 12,10 and 1| inwardly and free them from engagement with the lugs 19, and 8|. Clockwise rotation of the bellcrank 56 causes engagement of the pin I00 on the bellcrank 50 with the lower end of the slot I0! in the member 92 and moves zero stop pawl out of alignment with the zero stop lug 9|. counterclockwise rotation of shaft 52 moves the finger 52 to the left-hand end of the arcuate slot 5| in gear 50 preparatory to another resetting operation.

It will be understood from the foregoing description that the registers embodying the invention are capable of being reset to zero by substantially a single rotation of a reset shaft and that they are capable of long and emcient life because of the absence of any friction type clutches which wear and must be repaired or replaced. Likewise, such registers can be reset to zero position with little effort because each part is allowed to move freely and independently of any of the other cooperating parts.

It will be understood, of course, that many variations may be made in the-details of the device and that one or more of the registering mechanisms can be used and that the number, arrangement and type of indicating members may be varied without departing from the invention.

Therefore, the above described construction should be considered as illustrative only and not as limiting the scope of the following claims.

I claim:

1. In a registering mechanism, the combination of a first normally stationary rotatable shaft, a plurality of counting wheels associated with said first shaft, gears associated with each of said counting wheels and rotatably mounted on said first shaft, means interconnecting said gears for transmitting movement from one to the other of said gears during a counting opera-.- tion, said interconnecting means being releasable to allow independent movement of said gears during a resetting operation, movable pick-up means rotatable with said first shaft, said pickup means being movable into a position to couple said gears to said first shaft, a rotatable second shaft, movable means on said second shaft for retaining the pick-up means out of coupling position and movable in response to rotation of said second shaft to allow said pick-up means to move into said coupling position, means asso ciated with said second shaft and actuated in response to rotation thereof for releasing said in terconnecting means, and means responsive to rotation of said second shaft for rotating said first shaft. 2. The registering mechanism set forth in claim 1 in which the means for retaining the pick-up means out of coupling position comprises a cam movable in response to rotation of said second shaft, and a plurality of movable fingers engaging the pick-up means and said cam and movable lnto positions in response to movement of the cam for retaining the pick-up means out of coupling position or allow the pick-up means to couple said gears to said first rotatable shaft.

3. In a register comprising a first and second indicating means having interconnecting transfer mechanism including disconnectable means, and means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said first and second indicating means to zero position comprising a reset shaft, pick-up devices carried by said shaft, said pick-up devices being movable during a resetting operation to engage said associated means and return said first and second indicating means toward zero position, means for retaining said pick-up devices out of engaging position during counting operations and means operable during a resetting operation to disconnect said transfer mechanism and effect movement of said pick-up devices into said engaging position to retdrn said first and second indicating means to zero position.

4. In a register comprising a first and second indicating means having interconnecting transfer mechanism including disconnectable means, and means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said first and second indicating means'to zero position comprising a reset shaft, pick-up devices carried by said shaft, means for biasing said devices for movement into positions to engage said associated means, means for holding said pick-up devices out of said engageable position during a counting operation, and means operable during a resetting operation to disconnect said transfer mechanism and cause said holding means to permit said pick-up devices to move into said engageable position whereby said first and second indicating means may be returned to zero position.

5. In a register comprising a first and second indicating means having interconnecting transfer mechanism including disconnectable means, and means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said first and second indicating means to zero position comprising pick-up means movable into a position where said pick-up means is adapted to engage said associated means and return said first and second indicating means to zero position, means for retaining said pick-up means out of said engageable position during a counting operation,

and means including a lost motion connection to first disconnect said transfer mechanism and .then cause said pick-up means to move into said engaging position to return said first and second indicating means to zero position.

6. In a register comprising a first and second indicating means having interconnecting transfer mechanism including disconnectable means, and means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said first and second indicating means to zero position in a direction opposite to the direction of movement during a counting operation, comprising a reset shaft, pick-up devices carried by said shaft, means urging said devices radially of said shaft into positions to operatively connect with said associated means and return said first and second indicating means backward toward zero position, means for controlling the radial movement of said pick-up devices, and means operable during a resetting operation to disconnect said transfer mechanis and actuate said control means to effect ra ial movement of said pick-up devices whereby said first and second indicating means may be returned backward to zero position.

7. In a register comprising a plurality of indicating means having interconnecting transfer mechanism including disconnectable means, and

means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said indicating means to zero position comprising a reset shaft, pick-up devices carried by said shaft, each of said devices being radially movable into a position where the device is adapted to coact with one of said associated means and return one of said indicating means toward zero position, and means operable upon initial movement of said reset shaft to disconnect said transfer mechanism and effect radial movement of said pick-up devices whereby rotation of said shaft operates to pick up and return said indicating means to zero position.

8. In a register comprising a first and second indicating means--having interconnectingtransfer mechanism including disconnectable means, and means associated with each indicating means to facilitate the resetting thereof; the combina tion of means for resetting said first and second indicating means to zero position comprising pick-up means movable into an orbit where said pick-up means are adapted to operatively connect with said associated means and return said first and second indicating means toward zero position, means movable into a position to stop said and means associated with each indicating means to facilitate the resetting thereof; the combination of means for resetting said first and second indicating means to zero position comprising pick-up means movable into an orbit where said pick-up means are adapted to operatively conmeans have reached zero to reconnect said transfer mechanism and move said pick-up means out of said orbit.

10. In a register, a shaft, first and second counting wheels mounted for rotation on said shaft, a second shaft, a transfer unit including a mutilated gear rotatably mounted on said second shaft and operatively connected to said first wheel, another transfer unit including a fulltooth gear rotatably mounted on said second shaft and operatively connected to said second wheel, means including disconnectable pinion elements interconnecting said mutilated and fulltooth gears for transmitting movement from said first 'wheel to said second wheel during a counting operation, means carried by said second shaft for engaging each of the transfer units during a resetting operation to return said wheels to zero position,.and means operable during a resetting operatively connected to said second wheel, means including disconnectable pinion elements interconnecting said mutilated and full-tooth gears for transmitting movement from said first wheel to said second wheel during a counting operation, pick-up pawls mounted for rotation-with said second shaft and movable into and out of a position for coupling said mutilated and fulltoothed gearsfor rotation with said second shaft, control means for preventing said pick-up pawls from moving into coupling position during a counting operation, and means operable to dis,- connect said pinion elements, actuate said control means to effect the movement of said pickup pawls into said coupling position and rotate said second shaft.

CHARLES S. HAZARD.

CERTIFICATE OF CORRECTION. Patent No. 2,2 1,792. v August 5, 19h1.

CHARLES s. HAZARD. It is hereby bertified that error appears in the printed specification of the above numbered patent requiring corrctipnas follows: Page}, 560- 0nd column, lines 61 and 62., atrik out "68, 70 and 7 1 and insert: intead --70, 7 l and 72, -respectivaly; and that thsaid Letters Patent :7 should 0rd of the cas in the" Pb.tonfi Office Signed and sealed this 23rd day ofSeptembeIQ A. 12. 191 1; v

- ,Honry lrsfial, -(Seal) Aetingcomisaioner or Patents.

CERTIFICATE OF CORRECTION.

Patent No. 2,251,792. August 5, l9hl.

CHARLES S. HAZARD. It is hereby eertified that error appears in the printed Specification of the above numbered patent requiring correctionas follows: Page 5, sec- 0nd column, lines 61 and 62., strike out "68, 7O arid 71" 'and insert jntead --7o, "(1 and 72, -respectively-; and that the Said Letters Petent should be read with this correctiqn therein that the game may op form to the rec- 0rd of the case in the" Pe t n Office.

signed and sealed this 25rd day of'september A. Dr 1914.1. V.

v .Benr'y vii; AI-Saab, (Seal) Abtiz z g' coxhmiaaioner or Patents. 

